After this the Lord appointed seventy-two others and sent them on ahead of him, two by two, into every town and place where he himself was about to go. ² And he said to them, “The harvest is plentiful, but the laborers are few.  Therefore pray earnestly to the Lord of the harvest to send out laborers into his harvest. ³ Go your way; behold, I am sending you out as lambs in the midst of wolves.
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The seventy-two returned with joy, saying, “Lord, even the demons are subject to us in your name!” ¹⁸ And he said to them, “I saw Satan fall like lightning from heaven. ¹⁹ Behold, I have given you authority to tread on serpents and scorpions, and over all the power of the enemy, and nothing shall hurt you. ²⁰ Nevertheless, do not rejoice in this, that the spirits are subject to you, but rejoice that your names are written in heaven.”

(Luke 10:1-3 & 17-20 -- ESV)